The leukocytes called natural killer lymphocytes
A) release prostaglandins and leukotrienes in response to microbes.
B) increase in allergies and helminth infection.
C) respond to the coating of a pathogen by complement.
D) are nonspecific leukocytes that secrete toxins onto the surface of virally infected cells.
E) are specialists in killing bacteria.
D
You might also like to view...
All of the following hormones are lipids derived from cholesterol EXCEPT
A. melatonin. B. estradiol. C. cortisol. D. aldosterone. E. testosterone.
A trait shows ____ if the phenotype of that trait is present in less than 100% of those with the related genotype
a. autosomal recessive inheritance b. autosomal dominant inheritance c. incomplete dominance d. incomplete penetrance e. incomplete expressivity
Glycogen is a polysaccharide used for energy
storage by a. animals. b. plants. c. protistans. d. bacteria. e. archaea.
One of the most common causes of mental retardation in the United States is
a. congenital rubella syndrome. b. cocaine addiction. c. fetal alcohol syndrome. d. use of thalidomide by pregnant women. e. use of tetracycline by pregnant women.